Eureka - Really can't stand this show. It's not funny. It's not dramatic. I guess it is supposed to be quirky and fun?
Warehouse 13 - People seem to like this show. I am not sure why. The production values are incredibly low, even for SYFY standards, the and the acting horrible.
True Blood - I liked parts of the first season, but the show completely fell apart in the second season. This isn't saying much since I thought the good parts of season 1 was the over-the-top camp style of the show. But ultimately the show is just about tits, abs and ass and not very compelling.
The Shield - Good show, but not in the same league as the Wire. The show suffered from some inconsistencies, and at times I struggled to suspend my disbelief and accept someone so stupid could be so corrupt and so successful. Yes, I know how the show ended, I just didn't find it believable.
Fringe - Seemed like it could be good. Total crap. Not sure how or why this show is still on the air.
Grimm - The concept is cool. I like the concept a lot. The execution sucks. Very inconsistent with the rules. Very poor use of the actors involved, poor casting and just plain poor script writing.
House - I think the show should have ended after the second season. Far to formulaic to be interesting week to week. The writing seems to be schizophrenic at times and the constant over-analyzing of everything and everyone is annoying.
Reaper - I loved the pilot, which Kevin Smith directed iirc, and was hyped about the show. They had the right people in the cast, an excellent premise and then.... what? Smith didn't direct any more shows and it went to crap. Nothing past the pilot was any good. In fact, watch the pilot then watch the very next show and note how much it sucked after. Hard to believe it used the same people.
Enterprise - Thought this would be a great show. Looked great. Had actors I really have enjoyed watching (Baccula) and a hot new vulcan (shower scene in pilot was the hottest thing in any trek franchise). But they abandoned the whole time travel premise of the show when ratings didn't materialize instead of working on making the story less convoluted and more interesting. After that, the show was doomed to fail. Sad really. I think they could have done a lot more with this.
Voyager - After TNG ended I really needed a fix. Voyager made me hate Trek. It's the worst of the Trek franchises which is saying a lot.
Californication - First season was ok. It really was. I expected the next few seasons would see Hank Moody struggle and come to terms with growing up and maturing. I thought we would see his love of women's parts mature into a genuine love of women. Never happened. As I watched the show it became more and more apparent they were set on grinding the premise into the ground without giving any kind of character development or satisfaction for sticking it out. The show is basically a showcase for tits and little else. I really, really, REALLY hate this show.
Pushing Daisies - never got into the show. So kill me.
Dexter - Even though the first season was flawed I liked the premise so much I overlooked the classic warning signs: inconsistent dialogue, plots and characters. Now the show is just a wreck. It could have been so much better in so many ways.